JP3999785B2 - 通信方法 - Google Patents
通信方法 Download PDFInfo
- Publication number
- JP3999785B2 JP3999785B2 JP2005013291A JP2005013291A JP3999785B2 JP 3999785 B2 JP3999785 B2 JP 3999785B2 JP 2005013291 A JP2005013291 A JP 2005013291A JP 2005013291 A JP2005013291 A JP 2005013291A JP 3999785 B2 JP3999785 B2 JP 3999785B2
- Authority
- JP
- Japan
- Prior art keywords
- client
- server
- packet
- port number
- address
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Small-Scale Networks (AREA)
Description
12,52 サーバ
13,14,53,54 ルータ
Claims (3)
- NAT機能を有するネットワーク機器に接続されたクライアントとサーバとの間で通信を行うための通信方法において、
前記ネットワーク機器が、前記クライアントから受信したUDPパケットの前記クライアント側のプライベートアドレスおよび内側ポート番号を、ネットワーク側のグローバルアドレスおよび外側ポート番号に変換して、前記UDPパケットを前記サーバに送信する第1ステップと、
前記ネットワーク機器が、前記プライベートアドレスと前記グローバルアドレスとを対応付けたアドレス変換テーブルを作成して格納し、前記内側ポート番号と前記外側ポート番号とを対応付けたポート番号テーブルを生成して格納する第2ステップと、
前記サーバが、前記ネットワーク機器から受信した前記UDPパケットの前記グローバルアドレスおよび前記外側ポート番号を、前記クライアントごとに設定された端末IDと関連付けたマップオブジェクトに格納する第3ステップと、
前記クライアントが、前記ネットワーク機器を介して前記サーバに、キープアライブパケットを一定時間間隔で送信する第4ステップであって、前記キープアライブパケットのTTL値は、前記サーバに最も近いネットワーク機器であってICMPパケットを処理しないステルスモードで動作するネットワーク機器までの値に設定されている第4ステップと
を備えたことを特徴とする通信方法。 - 前記キープアライブパケットは、UDPエコーパケットであることを特徴とする請求項1に記載の通信方法。
- 前記一定時間間隔は、前記ネットワーク機器が、無通信状態であると判断し、UDPのポートを閉じるまでの無通信状態の時間未満に設定されていることを特徴とする請求項1または2に記載の通信方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005013291A JP3999785B2 (ja) | 2005-01-20 | 2005-01-20 | 通信方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005013291A JP3999785B2 (ja) | 2005-01-20 | 2005-01-20 | 通信方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006203575A JP2006203575A (ja) | 2006-08-03 |
JP3999785B2 true JP3999785B2 (ja) | 2007-10-31 |
Family
ID=36961175
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005013291A Active JP3999785B2 (ja) | 2005-01-20 | 2005-01-20 | 通信方法 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3999785B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013069927A1 (en) * | 2011-11-11 | 2013-05-16 | Samsung Electronics Co., Ltd. | Method and apparatus for provisioning network address translator traversal methods |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5020584B2 (ja) * | 2006-09-26 | 2012-09-05 | パナソニック株式会社 | 通信コネクションの確立方法 |
US7881318B2 (en) * | 2007-02-28 | 2011-02-01 | Microsoft Corporation | Out-of-band keep-alive mechanism for clients associated with network address translation systems |
JP2008244645A (ja) * | 2007-03-26 | 2008-10-09 | Atsumi Electric Co Ltd | ネットワーク機器の生存監視システム及びネットワーク機器の生存監視方法 |
JP6106494B2 (ja) * | 2013-03-29 | 2017-03-29 | 株式会社東芝 | 通信制御装置、サーバ装置、通信システム及びプログラム |
JP6290053B2 (ja) * | 2014-09-18 | 2018-03-07 | 株式会社東芝 | 通信装置、通信システムおよび通信方法 |
JP7022508B2 (ja) * | 2017-01-30 | 2022-02-18 | キヤノン株式会社 | 通信装置、通信方法、及びプログラム |
CN113676540B (zh) * | 2021-08-23 | 2023-04-25 | 北京奇艺世纪科技有限公司 | 一种连接建立方法及装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3943859B2 (ja) * | 2001-05-01 | 2007-07-11 | 株式会社エヌ・ティ・ティ・ドコモ | 移動通信システム、移動通信方法、及び移動局 |
JP3445986B1 (ja) * | 2002-09-27 | 2003-09-16 | 松下電器産業株式会社 | インターネットに接続するサーバ、機器および通信システム |
JP4304593B2 (ja) * | 2002-11-01 | 2009-07-29 | ソニー株式会社 | 情報処理システム、情報処理装置および方法、並びにプログラム |
JP3835462B2 (ja) * | 2004-05-07 | 2006-10-18 | 松下電器産業株式会社 | 情報処理装置、及びバブルパケット送信方法 |
-
2005
- 2005-01-20 JP JP2005013291A patent/JP3999785B2/ja active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013069927A1 (en) * | 2011-11-11 | 2013-05-16 | Samsung Electronics Co., Ltd. | Method and apparatus for provisioning network address translator traversal methods |
Also Published As
Publication number | Publication date |
---|---|
JP2006203575A (ja) | 2006-08-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP3999785B2 (ja) | 通信方法 | |
USRE47566E1 (en) | NAT traversal for mobile network devices | |
US7738495B2 (en) | Method of determining a maximum transmission unit value of a network path using transport layer feedback | |
US8194566B2 (en) | Information processing device, and bubble packet transmission method and program | |
US8656017B2 (en) | Peer-to-peer collaboration system with edge routing | |
EP3186930B1 (en) | Relay optimization using software defined networking | |
US20040153858A1 (en) | Direct peer-to-peer transmission protocol between two virtual networks | |
US8650312B2 (en) | Connection establishing management methods for use in a network system and network systems using the same | |
JP5378494B2 (ja) | リレーサーバを利用したデータ伝送システム及び方法 | |
US8032641B2 (en) | Assymmetric traffic flow detection | |
US20140052870A1 (en) | Nat traversal for media conferencing | |
JP4222353B2 (ja) | Ip通信装置およびip通信システム | |
US20080101382A1 (en) | Efficient method for discovering path mtu for tcp connections | |
US9832276B2 (en) | Dynamic disabling of multi-step transport layer handshake spoofing in performance enhancing proxies (PEPs) in broadband networks | |
Muller et al. | Autonomous nat traversal | |
US20110072129A1 (en) | Icmp proxy device | |
JP2008098813A (ja) | 情報通信装置、情報通信方法、及びプログラム | |
CN105743852B (zh) | 通过http实现跨越网闸进行Socket保持连接通信的方法及*** | |
US11637874B2 (en) | Communications apparatus, systems, and methods for preventing and/or minimizing session data clipping | |
JP2005117587A (ja) | 通信方法 | |
JP5638063B2 (ja) | 通信装置、通信装置の制御方法、プログラム | |
US6826623B1 (en) | Detecting a dead gateway for subsequent non-TCP transmission by sending a first TCP packet and deleting an ARP entry associated with the gateway | |
JP2007208999A (ja) | 通信方法 | |
US8023985B1 (en) | Transitioning a state of a connection in response to an indication that a wireless link to a wireless device has been lost | |
JP4722615B2 (ja) | 通信方法及び通信装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20070510 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20070515 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20070717 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20070803 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20070809 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 3999785 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100817 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100817 Year of fee payment: 3 |
|
S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100817 Year of fee payment: 3 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100817 Year of fee payment: 3 |
|
S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313113 |
|
S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100817 Year of fee payment: 3 |
|
R360 | Written notification for declining of transfer of rights |
Free format text: JAPANESE INTERMEDIATE CODE: R360 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100817 Year of fee payment: 3 |
|
R360 | Written notification for declining of transfer of rights |
Free format text: JAPANESE INTERMEDIATE CODE: R360 |
|
R371 | Transfer withdrawn |
Free format text: JAPANESE INTERMEDIATE CODE: R371 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110817 Year of fee payment: 4 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110817 Year of fee payment: 4 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120817 Year of fee payment: 5 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130817 Year of fee payment: 6 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |